Overview
The TPS54560QDDARQ1 is a 60-V, 5-A step-down regulator produced by Texas Instruments. This device is designed with an integrated high-side MOSFET and is suitable for various high-power applications. It features current mode control, which simplifies external compensation and allows for flexible component selection. The regulator is capable of surviving load dump pulses up to 65 V per ISO 7637, making it robust for automotive and industrial environments. The device operates in a low-ripple, pulse-skip mode to reduce no-load supply current to 146 µA and shutdown supply current to 2 µA when the enable pin is pulled low.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5 to 60 | V |
| Output Current | 5 | A |
| High-Side MOSFET Resistance | 92 | mΩ |
| Operating Quiescent Current | 146 | µA |
| Shutdown Supply Current | 2 | µA |
| Switching Frequency Range | 100 kHz to 2.5 MHz | |
| Internal Voltage Reference | 0.8 V ±1% | |
| Operating Temperature Range | –40°C to 150°C | |
| Package Type | 8-pin HSOP with PowerPAD™ |
Key Features
- Integrated high-side MOSFET with 92 mΩ resistance
- Current mode control for simple external compensation and flexible component selection
- Low-ripple, pulse-skip mode reducing no-load supply current to 146 µA
- Shutdown supply current reduced to 2 µA when the enable pin is pulled low
- Adjustable undervoltage lockout (UVLO) voltage and hysteresis
- Wide adjustable switching frequency range (100 kHz to 2.5 MHz) for efficiency or component size optimization
- Internal phase-locked loop (PLL) for synchronization with an external clock signal
- Integrated bootstrap recharge diode and automatic BOOT capacitor recharge circuit
- Overvoltage transient protection (OVP) comparator
- Cycle-by-cycle current limit, frequency foldback, and thermal shutdown for protection during overload conditions
Applications
- Industrial automation and motor control
- Vehicle accessories: GPS, entertainment systems
- USB dedicated charging ports and battery chargers
- 12 V, 24 V, and 48 V industrial, automotive, and communications power systems
Q & A
- What is the input voltage range of the TPS54560QDDARQ1?
The input voltage range is from 4.5 V to 60 V.
- What is the maximum output current of the TPS54560QDDARQ1?
The maximum output current is 5 A.
- What is the resistance of the integrated high-side MOSFET?
The resistance of the integrated high-side MOSFET is 92 mΩ.
- How does the device reduce no-load supply current?
The device operates in a low-ripple, pulse-skip mode, reducing the no-load supply current to 146 µA.
- What is the shutdown supply current when the enable pin is pulled low?
The shutdown supply current is reduced to 2 µA when the enable pin is pulled low.
- Can the switching frequency be adjusted?
Yes, the switching frequency can be adjusted from 100 kHz to 2.5 MHz using a resistor connected to the RT/CLK terminal.
- Does the device have overvoltage protection?
Yes, the device includes an overvoltage transient protection (OVP) comparator to minimize output overvoltage transients.
- What is the operating temperature range of the TPS54560QDDARQ1?
The operating temperature range is from –40°C to 150°C.
- In what package is the TPS54560QDDARQ1 available?
The device is available in an 8-pin thermally enhanced HSOP PowerPAD™ package.
- What are some common applications of the TPS54560QDDARQ1?
Common applications include industrial automation, vehicle accessories, USB charging ports, and various industrial and automotive power systems.
